3 years ago

Please help me i need an answer

1 answer:

8 0

A. It is -6<b<10 so there are open circles at -6 and 10 with rays going off in opposite directions with a space in the middle

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How do I solve this problem? Please help

Westkost [7]

9n + 6 = 456
9n = 456 - 6
9n = 450
n = 450/9
n = 50

I believe this is the answer, though i'm not sure.

8 0

4 years ago

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What are all of the real roots of the following polynomial? f(x) x^4-24x^2-25

Greeley [361]

<u>Answer:</u>

x = ±5

<u>Step-by-step explanation:</u>

We are given the following polynomial function and we are to find all of its real roots:

$x^4-24x^2-25$

Let $y=x^2$ so we can now write it as:

$y^2-24y-25$

Factorizing it to get:

$(y^2+y)+(-25y-25)$

$y\left(y+1\right)-25\left(y+1\right)$

$\left ( y + 1 \right ) \left ( y - 2 5 \right)$

Substitute back $y=x^2$ to get:

$\left ( x^2 + 1 \right ) \left ( x^2 - 25 \right )$

$\left ( x^2 + 1 \right ) \left ( x + 5 \right ) \left ( x - 5 \right )$

The quadratic factor has only complex roots. Therefore, the real roots are x = ±5.

3 0

4 years ago

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What is the answer for -5x-8=3x+10

SIZIF [17.4K]

Answer:

x=− 9 /4

=−2.250

Step-by-step explanation:

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3 years ago

9) 1 = 0.99 + z? 10

Sati [7]

Answer:

0.99+10=10.99

Step-by-step explanation:

7 0

4 years ago

ZX is perpendicular bisector of WY if WY=24 what is WX

bixtya [17]

Answer:

Step-by-step explanation:

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3 years ago